Driving Under the Influence (DUI)

DUI charges are among the most common criminal cases in Orange County. If you’re facing DUI, having an experienced attorney on your side can make a big difference. A skilled DUI defense lawyer can represent you at most court hearings, identify important legal issues in your case, and handle your APS hearing with the California DMV. We’re here to fight for you, protect your rights.

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Orange County DUI - Former Public Defender, 19+ Years Experience. | Duffy Law, PC

I’ll help keep you out of jail, protect your record, and handle everything in court and at the DMV so you do not face this alone.

Facing a DUI in Orange County can feel like your life has hit a standstill. Between the flashing lights and the confusing paperwork, the stakes are incredibly high. At Duffy Law, PC, led by veteran attorney William J. Duffy, we provide aggressive, strategic defense for those facing driving under the influence charges in Irvine, Newport Beach, and the surrounding areas. With 20+ years of local experience, we don’t just handle cases—we fight for your future.

New California DUI Laws for 2026: What You Need to Know

California’s DUI landscape has changed significantly as of January 1, 2026. These updates affect everything from how long you are on probation to mandatory equipment in your vehicle:

Extended Probation (AB 1087): For serious DUI cases involving injury or manslaughter, mandatory probation has been increased to a range of three to five years.
Mandatory Ignition Interlock Devices (AB 366): The statewide IID program has been extended through 2033. Even first-time offenders should expect court-ordered breathalyzers in their vehicles for up to 12 months.
Felony Reductions (AB 321): In a rare defense-friendly update, judges now have the authority to reduce “wobbler” felony DUIs to misdemeanors at any point before trial, providing more opportunities for a favorable resolution.

The Orange County DUI Process: Two Fights in One

1. The DMV Administrative Per Se (APS) Hearing

You only have 10 days from the date of your arrest to request a hearing with the California DMV. If you miss this window, your license will be automatically suspended. As your Irvine DMV hearing attorney, William J. Duffy will fight to “stay” your suspension, allowing you to keep driving while we build your defense.

2. The Criminal Court Case

While the DMV focuses on your license, the court focuses on your freedom. We navigate every stage of the process, from your arraignment at the Harbor Justice Center to pretrial motions and, if necessary, a full jury trial.

3. Proven DUI Defense Strategies

We don’t accept the prosecution’s evidence at face value. Our firm utilizes advanced legal and scientific strategies to challenge the government’s case:

Challenging the Initial Stop: If the officer lacked reasonable suspicion or probable cause to pull you over, we file a Motion to Suppress (PC 1538.5) to have the evidence thrown out.
Inaccurate Chemical Tests: Breathalyzers and blood tests are prone to error. We investigate equipment calibration logs and look for procedural mistakes, such as a failure to observe the 15-minute waiting period.
Rising Blood Alcohol Defense: We can often prove your BAC was actually lower at the time you were driving than it was at the time you were tested.
The “No Driving” Defense: If the police didn’t see you driving, the prosecution may struggle to prove you were in “volitional movement” of the vehicle.

Arrested for DUI in Orange County – What Happens Next?

After you have been arrested for DUI in Orange County under VC 23152 or 23153, your license and your freedom are both immediately on the line, which is why contacting an Irvine DUI lawyer as soon as possible is critical. As an experienced Orange County DUI attorney, I walk you through each charge, protect your rights at your first court date (arraignment), and at once start looking for weaknesses in the traffic stop, the field sobriety tests, and the breath or blood results. At the same time, you face a separate DMV action that can suspend your license even while your court case is pending, so I promptly request the DMV hearing for you, appear on your behalf, and fight to keep you driving while your DUI case moves through the Orange County courts.

Frequently Asked Questions

I was just arrested for a DUI in Orange County. What is the very first thing I should do?

You must act within 10 calendar days of your arrest to request an Administrative Per Se (APS) hearing with the California DMV. If you miss this window, your driver’s license will be automatically suspended, regardless of your court outcome. At Duffy Law, PC, we handle this request for our clients immediately to secure a "stay" on the suspension, allowing you to keep driving while we fight your case.

How have California’s DUI laws changed in 2026?

Three major updates took effect on January 1, 2026:

AB 1087: Mandatory probation for serious DUIs (involving injury or manslaughter) is now 3 to 5 years.
AB 366: The Ignition Interlock Device (IID) requirement has been extended through 2033. Most offenders will now need an in-car breathalyzer for at least 12 months.
AB 321: Judges now have the authority to reduce "wobbler" felony DUIs to misdemeanors at any point before the trial begins, providing more opportunities for a favorable resolution.

Do I have to personally appear in court for my DUI case?

In most misdemeanor DUI cases in Orange County, your attorney can appear on your behalf under Penal Code 977. This means you likely won't have to miss work or step foot in a courtroom at the Harbor or Central Justice Centers unless your case goes to trial. For felony charges, your presence is generally required, though we work to minimize the number of appearances needed.

Will I lose my license, and for how long?

It depends on your BAC levels and prior record.

First Offense: Typically a 4-month administrative suspension. However, you can often immediately apply for an IID-restricted license that allows you to drive anywhere.
Refusals: If you refused a chemical test, you face a one-year suspension with no possibility of a restricted license.
Under 21: California’s "Zero Tolerance" policy carries a mandatory one-year suspension for a BAC of 0.01% or higher.

Can a DUI be dismissed even if I "failed" the breathalyzer?

Yes. Breathalyzers are machines, and machines fail or are improperly calibrated. We analyze the calibration logs, the officer’s training records, and whether the "15-minute observation period" was strictly followed. We also frequently use the "Rising Blood Alcohol" defense, proving your BAC was below the legal limit while you were driving, even if it was higher by the time you reached the station.

How much does a DUI defense cost, and do you offer free consultations?

Every case is unique based on the complexity and charges. At Duffy Law, PC, we provide a free initial consultation to review your police report and explain your options. We offer transparent, flat-fee structures so you know exactly what to expect without hidden hourly charges.

What Our Valued Clients Say About Us

Read honest client reviews and success stories from individuals we’ve represented in criminal defense and litigation cases. We take pride in delivering justice with integrity, dedication, and trusted legal expertise. Our clients’ voices reflect the true strength of our firm and our commitment to achieving the best possible legal outcomes.

Andrew OCONNELL

60 days ago

Mr Duffy went out his way to help me.I highly recommend him.

Edwin Canas

76 days ago

Thank you, Bill. When I first met Bill Duffy, I was going through one of the darkest periods of my life. What I found in Bill was not only an excellent attorney, but a compassionate person who genuinely cared about my well-being and recovery. Throughout the process, Bill treated my wife and me with respect, dignity, and understanding. He never lost sight of the fact that behind every legal case is a human being trying to find their way forward. One piece of advice he gave me was to continue prioritizing my recovery and my family. Those words stayed with me. Today, I am continuing my recovery journey, rebuilding relationships, sponsoring other alcoholics, and living a life with purpose and gratitude. This experience was painful, but it became the beginning of a new chapter in my life. Bill helped guide me through it with professionalism, integrity, and compassion. I am deeply grateful for his help and would highly recommend him to anyone looking for an attorney who not only understands the law, but also understands people, recovery, and restoration. Thank you, Bill, for helping me move forward with hope and dignity. Edwin Cañas. Happy Father’s Day weekend .

Diana Qvdo

92 days ago

Attorney William Duffy made a difficult process much easier to navigate. He took the time to explain each step clearly, kept me informed, and made sure I always knew what to expect. What stood out most was not only his knowledge and experience, but also the relationships and reputation he has built throughout the court system, from the DA’s office to the judges. You can tell people know and respect him, and that made a real difference. His professionalism and dedication helped achieve the best possible outcome which exceeded my expectations. I’m extremely grateful for his guidance and genuine support. If you’re looking for an attorney who is knowledgeable, compassionate, and effective, I would highly recommend William Duffy.

Kam Kas

93 days ago

Duffy was the calming voice I needed when I was facing legal issues. His protective nature and sense of humor always put me at ease. As an attorney, he was very professional and absolutely effective when it came to handling my case work. I would recommend him and you will too.

Gary Mcclain

94 days ago

I had an excellent experience working with Mr. Duffy. From the very beginning, he was professional, knowledgeable, and responsive to all of my questions and concerns. He took the time to explain every step of the process, making sure I understood my options and felt confident in the decisions being made. Mr. Duffy’s attention to detail, dedication, and commitment to achieving the best possible outcome were evident throughout my case. I always felt that my interests were a top priority, and his expertise helped make a potentially stressful situation much easier to navigate. I highly recommend Duffy Law to anyone seeking reliable, trustworthy, and effective legal representation. Thank you for your hard work and outstanding service

gabriel vivan

102 days ago

I want to sincerely thank Duffy Law for the outstanding work he did on my father’s criminal case. As his client, I was incredibly impressed with how professionally and committed he handled everything from the very beginning. He kept us informed every step of the way, explained all our options clearly, and fought hard for the best possible outcome. I’m very satisfied with the results and truly appreciate his dedication and expertise during what was a difficult time for our family. He made a stressful situation much more manageable. If you need a skilled and reliable attorney, I highly recommend him. He is The “real Lincoln Lawyer.”

Todor Tanev

131 days ago

I can’t recommend Bill Duffy enough! He recently got my traffic ticket completely dismissed, and the entire process was smooth, professional, and stress-free from start to finish. What really stood out is his dedication—not only did he take great care of my case, but he’s also been actively helping another driver from Black Car Newport get their ticket dismissed as well. That level of commitment and consistency speaks volumes. If you’re looking for a reliable, knowledgeable, and results-driven traffic attorney, Bill is the one to call. Truly 5-star service! ⭐⭐⭐⭐⭐

Jamie Kay

145 days ago

Mr. Duffy came to me in a time of desperate need for a professional, honest, thorough and respected lawyer. I was beyond lucky to have him on my case. He is honest, is not just going to tell you want to hear, but will also fight for you for the best possible outcome the justice system will provide you under whatever circumstances you are facing. His reputation and knowledge are beyond what I was aware of when he began representing me. If you want experienced, straightforward yet empathetic council who will go out beyond his responsibilities to you on your case, he is the right man for the job. I was terrified facing my legal woes and my world felt upside down. He stepped in and treated me with consideration, truthfulness and professionalism. Nobody wants to go through any defensive charge, yet I felt very taken confident in his care and guidance. For me, with years of anxiety issues, I couldn’t have asked for a better professional to manage my case. He put me at ease and I knew that things works work out just fine with his help. I have zero complaints and nothing but deep appreciation for this man and how he walked me through every step of the process with patience and clear communication. I would advise anybody facing a challenge of a defensive charge to seek out the help of Mr. Duffy. You could not put yourself in better hands. I have nothing but appreciation and respect.

Cong Mu

165 days ago

Hired them 7 years ago and they delivered outstanding results. Came back recently for more help, and they provided excellent assistance for free. That level of loyalty and generosity is rare. Highly knowledgeable, responsive, and client-focused. Would recommend them without hesitation. Also the AI interface on their website is great, you should try.

Abel

168 days ago

An outstanding lawyer, he kept through informed through my whole process and help me with my case with the overall results. I was very happy and satisfied I would definitely recommend him.

Mr.J_22

168 days ago

He was awesome he kept me in the loop and made sure I was feeling heard my concerns were his and that I felt comfortable with decisions Being made. I definitely would recommend him

Benny Leon

190 days ago

If you are looking for a defense attorney in Orange County, Will Duffy is the person to call. He helped me navigate a difficult DUI case with total professionalism, and now that I’m eligible, he’s handling my expungement to help me move forward. He has a way of explaining complex legal jargon in plain English, so I never felt lost. I can’t recommend him enough for anyone in the Irvine area needing a fresh start.

kelly kettle

220 days ago

My fianc’e and I were really scared, Mr. Duffy took the time to explain what to expect, and delivered on everything, really going above & beyond! Thank you Mr. Duffy!

Peter Robles

254 days ago

I cannot recommend Bill Duffy highly enough. From our very first conversation, it was evident that Bill is not only an outstanding attorney but also a genuinely good man. Throughout my case, he demonstrated professionalism, integrity, and deep care. Bill always made sure to explain every detail clearly, advocating for me with both confidence and impressive skill. What truly distinguishes Bill is his unwavering Christian morals and the authentic way he lives them out. He showed me compassion and kindness that far exceeded my expectations for an attorney. For example, Bill thoughtfully bought me a Bible and personally invited me to his church. This gesture meant more to me than words can express and showed me that he genuinely cares about people, not just the cases he handles. If you are searching for a lawyer who is not only highly skilled and trustworthy but also guided by faith and strong moral values, Bill Duffy is the person you want by your side.

Anush Sadjadi

261 days ago

From the time I met him you made me feel like he understood what I was going through and you wanted the best for me. He definitely went above and beyond where I paid him for and I'll always be grateful to him. He's a great attorney. And I have to say he's a great friend. Thanks William.

DUFFY LAW, A Professional Corporation

Driving Under the Influence (DUI)